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How to make DIY Wood Triangle Shelf Brackets

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Want to build wooden shelf brackets from scratch? Here’s a simple step by step tutorial showing how to build inexpensive wood shelf brackets!

We’re continuing on with the guest bedroom makeover with these DIY triangle shelf brackets! We’ve shared with you our cedar plank ceiling and our color block wall painting already.

Once we had the frame of the room done, we could start with filling it in. We started by making these brackets and a wall-to-wall shelf over the bed for books!

How to build wood shelf brackets

These brackets are high impact and really cool. We wanted something unique and study to hold literally all of the books that we own.

DIY Triangle Shelf Brackets - Charleston Crafted

How to make triangle shelf brackets out of wood

Making a triangular shelf bracket is easy. It requires three pieces of wood. We made these brackets based on planning to hang a 1″x8″ shelf.

Supplies needed to make wooden shelf bracket:

  • 1×3″ lumber, less than 2 feet for each bracket
  • Pocket hole screws + jig
  • Wood glue
  • Painter’s tape

We used 1×3 lumber for these brackets, meaning they are 3/4″ thick by 2 1/2″ wide.

Honestly, if you just wanted to make one or two brackets, you could use scrap pieces of wood!

Choosing the right boards

Smaller lumber like 1×3″ boards tend to get warped. It is VERY important that you hold up each board at the hardware store and buy straight ones. Warped boards won’t make a good triangle!

For each bracket, we cut three pieces- 7″, 6 1/4″, and 9″ (this one being beveled at 45 degrees on each end and the 9″ being the longest side.

DIY Triangle Shelf Brackets - Charleston Crafted

In the 6 1/4″ piece, we drilled two pocket holes and then attached this piece into the 7″ piece.

The Kreg pocket hole screws make this a really heavy duty bracket!

Tip: if you want to pre-drill pilot holes to screw these into the wall, do it before you Kreg and glue the pieces together!

Then we spread wood glue on the two cut edges of the 9″ piece and secured that to the angle of the other two pieces.

You could also use corner clamps or even a speed square to ensure you get a nice 45 degree angle as the wood glue dries.

DIY Triangle Shelf Brackets - Charleston Crafted

Once the glue was dry, we removed the tape and then stained the shelf brackets with a white wash.

DIY Triangle Shelf Brackets - Charleston Crafted

Making shelf brackets out of wood might sound scary, but I hope that showed you how easy it really is to do!

How to add a wooden shelf

For the shelf, we cut a 12 foot board down to the exact dimensions of our wall so it would go the full length. We stained the board with Varathane Weathered Wood Accelerator to create a similar look to the side tables. We wanted to have things match as best as possible.

DIY Triangle Shelf Brackets - Charleston Crafted

Installation of wooden brackets

We hung the brackets on the wall using drywall anchors and screws. You might want to drill a pilot hole in your bracket first.

Honestly, it was pretty tough to get a drill bit inside the triangle of the support bracket! Take your time with it.

We set it so that the shelf would sit right at the line of our color blocked wall. The three brackets were spaced out with two each a foot from the walls and one in the center.

Be sure to use a level (or laser level) to ensure straight lines!

Bracket spacing

Place your brackets approximately every 3 feet apart or closer for a 1″ thick board. Anything wider will tend to sag under any significant weight!

DIY Triangle Shelf Brackets - Charleston Crafted

We spread out all of our remaining books that we haven’t purged on the bookshelf. Now, if one of our guests needs something to read, all they have to do is reach up!

DIY Triangle Shelf Brackets - Charleston Crafted
DIY Triangle Shelf Brackets - Charleston Crafted
Yield: 1 shelf bracket

How to make wooden shelf brackets

Active Time: 30 minutes
Total Time: 30 minutes
Difficulty: Medium
Estimated Cost: $10-50

These shelf brackets are very sturdy and a great option if you want DIY brackets! We used 3 to hold up 1 10 foot shelf

Materials

  • 1"x3" lumber
  • Paint or stain
  • Kreg screws
  • Wood glue

Tools

  • Saw
  • Drill
  • Kreg Jig

Instructions

  1. Cut three pieces- 7″, 6 1/4″, and 9″ - this one being beveled at 45 degrees on each end and the 9″ being the longest side.
  2. In the 6 1/4″ piece, drill two pocket holes and then attached this piece into the 7″ piece.
  3. Then spread wood glue on the two cut edges of the 9″ piece and secured that to the angle of the other two pieces.
  4. Stain or paint the brackets.
  5. To mount - use a level to ensure it's level and screw into the wall. We recommend 3 for a long shelf.

Recommended Products

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Did you make this project?

Please leave a comment on the blog or share a photo on Pinterest

This post contains affiliate links, meaning that if you click through and make a purchase, we receive a small percentage of the sale. Thanks for your support!

 
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